diff --git a/pysollib/init.py b/pysollib/init.py
index 0621c366f..162d47e1f 100644
--- a/pysollib/init.py
+++ b/pysollib/init.py
@@ -102,7 +102,7 @@ def init():
         sys.argv.remove('--kivy')
 
     if pysollib.settings.TOOLKIT == 'tk':
-        from six.moves import tkinter
+        import tkinter
         root = tkinter.Tk(className=pysollib.settings.TITLE)
         root.withdraw()
         if tkinter.TkVersion < 8.4:
diff --git a/pysollib/pysolgtk/findcarddialog.py b/pysollib/pysolgtk/findcarddialog.py
index 0b6f1fa48..ee491fbad 100644
--- a/pysollib/pysolgtk/findcarddialog.py
+++ b/pysollib/pysolgtk/findcarddialog.py
@@ -23,7 +23,7 @@
 
 # imports
 #  import os
-#  from six.moves import tkinter
+#  import tkinter
 #  import traceback
 
 #  # PySol imports
diff --git a/pysollib/pysolgtk/fullpicturedialog.py b/pysollib/pysolgtk/fullpicturedialog.py
index 4a26eab63..541d2dd6f 100644
--- a/pysollib/pysolgtk/fullpicturedialog.py
+++ b/pysollib/pysolgtk/fullpicturedialog.py
@@ -23,7 +23,7 @@
 
 # imports
 #  import os
-#  from six.moves import tkinter
+#  import tkinter
 #  import traceback
 
 #  # PySol imports
diff --git a/pysollib/pysolgtk/gameinfodialog.py b/pysollib/pysolgtk/gameinfodialog.py
index 8ceb39020..fdb910865 100644
--- a/pysollib/pysolgtk/gameinfodialog.py
+++ b/pysollib/pysolgtk/gameinfodialog.py
@@ -24,7 +24,7 @@
 
 #  # imports
 #  import os, sys
-#  from six.moves import tkinter
+#  import tkinter
 
 #  # PySol imports
 #  from pysollib.mfxutil import KwStruct
diff --git a/pysollib/tile/fontsdialog.py b/pysollib/tile/fontsdialog.py
index 858944dd9..39c939273 100644
--- a/pysollib/tile/fontsdialog.py
+++ b/pysollib/tile/fontsdialog.py
@@ -21,11 +21,12 @@
 #
 # ---------------------------------------------------------------------------
 
+import tkinter
+
 from pysollib.mfxutil import KwStruct
 from pysollib.mygettext import _
 from pysollib.ui.tktile.tkutil import bind
 
-from six.moves import tkinter
 from six.moves import tkinter_font
 from six.moves import tkinter_ttk as ttk
 
diff --git a/pysollib/tile/playeroptionsdialog.py b/pysollib/tile/playeroptionsdialog.py
index 878020c1a..604b5aff3 100644
--- a/pysollib/tile/playeroptionsdialog.py
+++ b/pysollib/tile/playeroptionsdialog.py
@@ -21,10 +21,11 @@
 #
 # ---------------------------------------------------------------------------##
 
+import tkinter
+
 from pysollib.mfxutil import KwStruct
 from pysollib.mygettext import _
 
-from six.moves import tkinter
 from six.moves import tkinter_ttk as ttk
 
 from .tkwidget import MfxDialog
diff --git a/pysollib/tile/progressbar.py b/pysollib/tile/progressbar.py
index 883a9263d..703bf2721 100644
--- a/pysollib/tile/progressbar.py
+++ b/pysollib/tile/progressbar.py
@@ -21,10 +21,11 @@
 #
 # ---------------------------------------------------------------------------
 
+import tkinter
+
 from pysollib.ui.tktile.tkconst import EVENT_HANDLED
 from pysollib.ui.tktile.tkutil import makeToplevel, setTransient
 
-from six.moves import tkinter
 from six.moves import tkinter_ttk as ttk
 
 # ************************************************************************
diff --git a/pysollib/tile/selectcardset.py b/pysollib/tile/selectcardset.py
index b5115cbc4..4b5ec0306 100644
--- a/pysollib/tile/selectcardset.py
+++ b/pysollib/tile/selectcardset.py
@@ -22,6 +22,7 @@
 # ---------------------------------------------------------------------------##
 
 import os
+import tkinter
 
 from pysollib.mfxutil import KwStruct, USE_PIL
 from pysollib.mygettext import _
@@ -31,7 +32,6 @@
 from pysollib.ui.tktile.tkutil import bind, loadImage
 from pysollib.util import CARDSET
 
-from six.moves import tkinter
 from six.moves import tkinter_ttk as ttk
 
 from .selecttree import SelectDialogTreeCanvas
diff --git a/pysollib/tile/selectgame.py b/pysollib/tile/selectgame.py
index f979b7063..218ccbe75 100644
--- a/pysollib/tile/selectgame.py
+++ b/pysollib/tile/selectgame.py
@@ -22,6 +22,7 @@
 # ---------------------------------------------------------------------------
 
 import os
+import tkinter
 from collections import UserList
 
 from pysollib.gamedb import GI
@@ -32,7 +33,6 @@
 from pysollib.ui.tktile.selecttree import SelectDialogTreeData
 from pysollib.ui.tktile.tkutil import bind, unbind_destroy
 
-from six.moves import tkinter
 from six.moves import tkinter_ttk as ttk
 
 from .selecttree import SelectDialogTreeCanvas
diff --git a/pysollib/tile/selecttile.py b/pysollib/tile/selecttile.py
index c7ad0bb45..56e779063 100644
--- a/pysollib/tile/selecttile.py
+++ b/pysollib/tile/selecttile.py
@@ -22,6 +22,7 @@
 # ---------------------------------------------------------------------------##
 
 import os
+import tkinter
 
 from pysollib.mfxutil import KwStruct, USE_PIL
 from pysollib.mygettext import _
@@ -29,7 +30,6 @@
 from pysollib.ui.tktile.selecttree import SelectDialogTreeData
 from pysollib.ui.tktile.tkutil import bind
 
-from six.moves import tkinter
 from six.moves import tkinter_colorchooser
 from six.moves import tkinter_ttk as ttk
 
diff --git a/pysollib/tile/soundoptionsdialog.py b/pysollib/tile/soundoptionsdialog.py
index 9977955c1..ed7390ebb 100644
--- a/pysollib/tile/soundoptionsdialog.py
+++ b/pysollib/tile/soundoptionsdialog.py
@@ -22,6 +22,7 @@
 # ---------------------------------------------------------------------------
 
 import os
+import tkinter
 
 from pysollib.mfxutil import KwStruct
 from pysollib.mygettext import _
@@ -29,7 +30,6 @@
 from pysollib.settings import TITLE
 from pysollib.ui.tktile.tkconst import EVENT_HANDLED
 
-from six.moves import tkinter
 from six.moves import tkinter_ttk as ttk
 
 from .tkwidget import MfxDialog, MfxMessageDialog
diff --git a/pysollib/tile/statusbar.py b/pysollib/tile/statusbar.py
index 5cc03161f..c23632171 100644
--- a/pysollib/tile/statusbar.py
+++ b/pysollib/tile/statusbar.py
@@ -24,10 +24,10 @@
 # imports
 import os
 import sys
+import tkinter
 
 from pysollib.mygettext import _
 
-from six.moves import tkinter
 from six.moves import tkinter_ttk as ttk
 
 from .tkwidget import MfxTooltip
diff --git a/pysollib/tile/timeoutsdialog.py b/pysollib/tile/timeoutsdialog.py
index 896d1f3d0..c4fafd5ab 100644
--- a/pysollib/tile/timeoutsdialog.py
+++ b/pysollib/tile/timeoutsdialog.py
@@ -21,10 +21,11 @@
 #
 # ---------------------------------------------------------------------------##
 
+import tkinter
+
 from pysollib.mfxutil import KwStruct
 from pysollib.mygettext import _
 
-from six.moves import tkinter
 from six.moves import tkinter_ttk as ttk
 
 from .tkwidget import MfxDialog, PysolScale
diff --git a/pysollib/tile/tkhtml.py b/pysollib/tile/tkhtml.py
index 4ede24f0c..0e2c357bc 100644
--- a/pysollib/tile/tkhtml.py
+++ b/pysollib/tile/tkhtml.py
@@ -23,12 +23,12 @@
 
 import os
 import sys
+import tkinter
 
 from pysollib.mfxutil import Struct
 from pysollib.mygettext import _
 from pysollib.ui.tktile.tkhtml import Base_HTMLViewer
 
-from six.moves import tkinter
 from six.moves import tkinter_ttk as ttk
 
 from .statusbar import HtmlStatusbar
diff --git a/pysollib/tile/tkstats.py b/pysollib/tile/tkstats.py
index 9d940497e..ac8c9d026 100644
--- a/pysollib/tile/tkstats.py
+++ b/pysollib/tile/tkstats.py
@@ -23,6 +23,7 @@
 
 import os
 import time
+import tkinter
 
 from pysollib.mfxutil import KwStruct
 from pysollib.mfxutil import format_time
@@ -31,7 +32,6 @@
 from pysollib.stats import ProgressionFormatter, PysolStatsFormatter
 from pysollib.ui.tktile.tkutil import bind, loadImage
 
-from six.moves import tkinter
 from six.moves import tkinter_font
 from six.moves import tkinter_ttk as ttk
 
diff --git a/pysollib/tile/tktree.py b/pysollib/tile/tktree.py
index ce0bfa089..34dc7611e 100644
--- a/pysollib/tile/tktree.py
+++ b/pysollib/tile/tktree.py
@@ -22,11 +22,10 @@
 # ---------------------------------------------------------------------------
 
 import os
+import tkinter
 
 from pysollib.ui.tktile.tkutil import bind
 
-from six.moves import tkinter
-
 from .tkwidget import MfxScrolledCanvas
 
 
diff --git a/pysollib/tile/tkwidget.py b/pysollib/tile/tkwidget.py
index c0af8d00e..1e990cac7 100644
--- a/pysollib/tile/tkwidget.py
+++ b/pysollib/tile/tkwidget.py
@@ -24,6 +24,7 @@
 import locale
 import os
 import time
+import tkinter
 import traceback
 
 from pysollib.mfxutil import KwStruct, destruct, kwdefault, openURL
@@ -34,7 +35,6 @@
 from pysollib.ui.tktile.tkutil import bind, unbind_destroy
 from pysollib.ui.tktile.tkutil import makeToplevel, setTransient
 
-from six.moves import tkinter
 from six.moves import tkinter_font
 from six.moves import tkinter_ttk as ttk
 
diff --git a/pysollib/tile/toolbar.py b/pysollib/tile/toolbar.py
index 435f077de..12520d832 100644
--- a/pysollib/tile/toolbar.py
+++ b/pysollib/tile/toolbar.py
@@ -22,6 +22,7 @@
 # ---------------------------------------------------------------------------##
 
 import os
+import tkinter
 
 from pysollib.mfxutil import Image, ImageOps, ImageTk
 from pysollib.mygettext import _, n_
@@ -32,7 +33,6 @@
 from pysollib.util import IMAGE_EXTENSIONS
 from pysollib.winsystems import TkSettings
 
-from six.moves import tkinter
 from six.moves import tkinter_ttk as ttk
 
 from .tkwidget import MfxTooltip
diff --git a/pysollib/tile/wizarddialog.py b/pysollib/tile/wizarddialog.py
index 8c28e74fa..534f7b880 100644
--- a/pysollib/tile/wizarddialog.py
+++ b/pysollib/tile/wizarddialog.py
@@ -21,12 +21,13 @@
 #
 # ---------------------------------------------------------------------------
 
+import tkinter
+
 from pysollib.mfxutil import KwStruct
 from pysollib.mygettext import _
 from pysollib.wizardpresets import presets
 from pysollib.wizardutil import WizardWidgets
 
-from six.moves import tkinter
 from six.moves import tkinter_ttk as ttk
 
 from .tkwidget import MfxDialog
diff --git a/pysollib/tk/basetkmfxdialog.py b/pysollib/tk/basetkmfxdialog.py
index bb9f0b7da..946c5ba95 100644
--- a/pysollib/tk/basetkmfxdialog.py
+++ b/pysollib/tk/basetkmfxdialog.py
@@ -1,6 +1,6 @@
-from pysollib.tk.tkwidget import MfxDialog
+import tkinter
 
-from six.moves import tkinter
+from pysollib.tk.tkwidget import MfxDialog
 
 
 class BaseTkMfxDialog(MfxDialog):
diff --git a/pysollib/tk/fontsdialog.py b/pysollib/tk/fontsdialog.py
index 1bb434141..8347e6532 100644
--- a/pysollib/tk/fontsdialog.py
+++ b/pysollib/tk/fontsdialog.py
@@ -21,12 +21,13 @@
 #
 # ---------------------------------------------------------------------------##
 
+import tkinter
+
 from pysollib.mfxutil import KwStruct
 from pysollib.mygettext import _
 from pysollib.tk.tkwidget import MfxDialog
 from pysollib.ui.tktile.tkutil import bind
 
-from six.moves import tkinter
 from six.moves import tkinter_font
 
 
diff --git a/pysollib/tk/playeroptionsdialog.py b/pysollib/tk/playeroptionsdialog.py
index ca48d80ec..767353814 100644
--- a/pysollib/tk/playeroptionsdialog.py
+++ b/pysollib/tk/playeroptionsdialog.py
@@ -21,12 +21,12 @@
 #
 # ---------------------------------------------------------------------------##
 
+import tkinter
+
 from pysollib.mfxutil import KwStruct, Struct
 from pysollib.mygettext import _
 from pysollib.ui.tktile.tkutil import bind
 
-from six.moves import tkinter
-
 from .tkwidget import MfxDialog
 
 
diff --git a/pysollib/tk/progressbar.py b/pysollib/tk/progressbar.py
index 4a1a191b9..3be9f842e 100644
--- a/pysollib/tk/progressbar.py
+++ b/pysollib/tk/progressbar.py
@@ -21,11 +21,11 @@
 #
 # ---------------------------------------------------------------------------##
 
+import tkinter
+
 from pysollib.ui.tktile.tkconst import EVENT_HANDLED
 from pysollib.ui.tktile.tkutil import makeToplevel, setTransient
 
-from six.moves import tkinter
-
 # ************************************************************************
 # * a simple progress bar
 # ************************************************************************
diff --git a/pysollib/tk/selectcardset.py b/pysollib/tk/selectcardset.py
index f9b68974f..112c53b85 100644
--- a/pysollib/tk/selectcardset.py
+++ b/pysollib/tk/selectcardset.py
@@ -22,6 +22,7 @@
 # ---------------------------------------------------------------------------##
 
 import os
+import tkinter
 
 from pysollib.mfxutil import KwStruct, USE_PIL
 from pysollib.mygettext import _
@@ -31,8 +32,6 @@
 from pysollib.ui.tktile.tkutil import loadImage
 from pysollib.util import CARDSET
 
-from six.moves import tkinter
-
 from .selecttree import SelectDialogTreeCanvas
 from .selecttree import SelectDialogTreeLeaf, SelectDialogTreeNode
 from .tkwidget import MfxDialog, MfxScrolledCanvas
diff --git a/pysollib/tk/selectgame.py b/pysollib/tk/selectgame.py
index cb9207785..4a8b20020 100644
--- a/pysollib/tk/selectgame.py
+++ b/pysollib/tk/selectgame.py
@@ -22,6 +22,7 @@
 # ---------------------------------------------------------------------------
 
 import os
+import tkinter
 from collections import UserList
 
 from pysollib.gamedb import GI
@@ -32,8 +33,6 @@
 from pysollib.ui.tktile.selecttree import SelectDialogTreeData
 from pysollib.ui.tktile.tkutil import unbind_destroy
 
-from six.moves import tkinter
-
 from .selecttree import SelectDialogTreeCanvas
 from .selecttree import SelectDialogTreeLeaf, SelectDialogTreeNode
 from .tkwidget import MfxDialog, MfxScrolledCanvas
diff --git a/pysollib/tk/selecttile.py b/pysollib/tk/selecttile.py
index b586df4e5..cb447213a 100644
--- a/pysollib/tk/selecttile.py
+++ b/pysollib/tk/selecttile.py
@@ -21,12 +21,13 @@
 #
 # ---------------------------------------------------------------------------##
 
+import tkinter
 
 from pysollib.mfxutil import KwStruct
 from pysollib.mygettext import _
 from pysollib.ui.tktile.selecttree import SelectDialogTreeData
 
-from six.moves import tkinter, tkinter_colorchooser
+from six.moves import tkinter_colorchooser
 
 from .selecttree import SelectDialogTreeCanvas
 from .selecttree import SelectDialogTreeLeaf, SelectDialogTreeNode
diff --git a/pysollib/tk/solverdialog.py b/pysollib/tk/solverdialog.py
index 29f38069c..8fcd2e9ad 100644
--- a/pysollib/tk/solverdialog.py
+++ b/pysollib/tk/solverdialog.py
@@ -21,13 +21,13 @@
 #
 # ---------------------------------------------------------------------------##
 
+import tkinter
+
 from pysollib.mfxutil import KwStruct
 from pysollib.mygettext import _
 from pysollib.tk.basetkmfxdialog import BaseTkMfxDialog
 from pysollib.ui.tktile.solverdialog import BaseSolverDialog, solver_dialog
 
-from six.moves import range, tkinter
-
 # ************************************************************************
 # *
 # ************************************************************************
diff --git a/pysollib/tk/soundoptionsdialog.py b/pysollib/tk/soundoptionsdialog.py
index c9081d7be..031f1b41b 100644
--- a/pysollib/tk/soundoptionsdialog.py
+++ b/pysollib/tk/soundoptionsdialog.py
@@ -22,6 +22,7 @@
 # ---------------------------------------------------------------------------##
 
 import os
+import tkinter
 
 from pysollib.mfxutil import KwStruct
 from pysollib.mygettext import _
@@ -29,8 +30,6 @@
 from pysollib.settings import TITLE
 from pysollib.ui.tktile.tkconst import EVENT_HANDLED
 
-from six.moves import tkinter
-
 from .tkwidget import MfxDialog, MfxMessageDialog
 
 # ************************************************************************
diff --git a/pysollib/tk/statusbar.py b/pysollib/tk/statusbar.py
index 89cef5fbd..f94d5d39a 100644
--- a/pysollib/tk/statusbar.py
+++ b/pysollib/tk/statusbar.py
@@ -23,12 +23,11 @@
 
 import os
 import sys
+import tkinter
 
 from pysollib.mygettext import _
 from pysollib.settings import WIN_SYSTEM
 
-from six.moves import tkinter
-
 from .tkwidget import MfxTooltip
 
 if __name__ == '__main__':
diff --git a/pysollib/tk/tabpage.py b/pysollib/tk/tabpage.py
index 60c4bf9ea..0db5a37ad 100644
--- a/pysollib/tk/tabpage.py
+++ b/pysollib/tk/tabpage.py
@@ -24,7 +24,7 @@
 a couple of classes for implementing partial tabbed-page like behaviour
 """
 
-from six.moves import tkinter
+import tkinter
 
 MYRIDGE, MYRAISED = tkinter.RAISED, tkinter.RIDGE
 # MYRIDGE, MYRAISED = tkinter.RIDGE, tkinter.RAISED
diff --git a/pysollib/tk/timeoutsdialog.py b/pysollib/tk/timeoutsdialog.py
index 4c4c97449..e8e50fc81 100644
--- a/pysollib/tk/timeoutsdialog.py
+++ b/pysollib/tk/timeoutsdialog.py
@@ -21,12 +21,11 @@
 #
 # ---------------------------------------------------------------------------
 
+import tkinter
 
 from pysollib.mfxutil import KwStruct
 from pysollib.mygettext import _
 
-from six.moves import tkinter
-
 from .tkwidget import MfxDialog
 
 
diff --git a/pysollib/tk/tkhtml.py b/pysollib/tk/tkhtml.py
index 27eab4415..4d97a00a6 100644
--- a/pysollib/tk/tkhtml.py
+++ b/pysollib/tk/tkhtml.py
@@ -23,13 +23,12 @@
 
 import os
 import sys
+import tkinter
 
 from pysollib.mfxutil import Struct
 from pysollib.mygettext import _
 from pysollib.ui.tktile.tkhtml import Base_HTMLViewer
 
-from six.moves import tkinter
-
 from .statusbar import HtmlStatusbar
 from .tkwidget import MfxMessageDialog
 
diff --git a/pysollib/tk/tkstats.py b/pysollib/tk/tkstats.py
index 6e6954b58..509a74300 100644
--- a/pysollib/tk/tkstats.py
+++ b/pysollib/tk/tkstats.py
@@ -23,6 +23,7 @@
 
 import os
 import time
+import tkinter
 
 from pysollib.mfxutil import KwStruct, kwdefault
 from pysollib.mfxutil import format_time
@@ -31,7 +32,6 @@
 from pysollib.stats import ProgressionFormatter, PysolStatsFormatter
 from pysollib.ui.tktile.tkutil import bind, loadImage
 
-from six.moves import tkinter
 from six.moves import tkinter_font
 
 from .tkwidget import MfxDialog, MfxMessageDialog
diff --git a/pysollib/tk/tktree.py b/pysollib/tk/tktree.py
index 8996f8167..96e3179b6 100644
--- a/pysollib/tk/tktree.py
+++ b/pysollib/tk/tktree.py
@@ -22,11 +22,10 @@
 # ---------------------------------------------------------------------------##
 
 import os
+import tkinter
 
 from pysollib.ui.tktile.tkutil import bind
 
-from six.moves import tkinter
-
 from .tkwidget import MfxScrolledCanvas
 
 
diff --git a/pysollib/tk/tkwidget.py b/pysollib/tk/tkwidget.py
index 228db91fa..dd63bb0ce 100644
--- a/pysollib/tk/tkwidget.py
+++ b/pysollib/tk/tkwidget.py
@@ -22,6 +22,7 @@
 # ---------------------------------------------------------------------------
 
 import time
+import tkinter
 import traceback
 
 from pysollib.mfxutil import KwStruct, destruct, kwdefault, openURL
@@ -32,7 +33,6 @@
 from pysollib.ui.tktile.tkutil import bind, unbind_destroy
 from pysollib.ui.tktile.tkutil import makeToplevel, setTransient
 
-from six.moves import tkinter
 from six.moves import tkinter_font
 
 # ************************************************************************
diff --git a/pysollib/tk/toolbar.py b/pysollib/tk/toolbar.py
index 1ae348449..973503cbd 100644
--- a/pysollib/tk/toolbar.py
+++ b/pysollib/tk/toolbar.py
@@ -22,6 +22,7 @@
 # ---------------------------------------------------------------------------##
 
 import os
+import tkinter
 
 from pysollib.mfxutil import Image, ImageTk
 from pysollib.mygettext import _, n_
@@ -31,8 +32,6 @@
 from pysollib.util import IMAGE_EXTENSIONS
 from pysollib.winsystems import TkSettings
 
-from six.moves import tkinter
-
 from .tkwidget import MfxTooltip
 
 
diff --git a/pysollib/tk/wizarddialog.py b/pysollib/tk/wizarddialog.py
index 891caeb3f..36fdaad1d 100644
--- a/pysollib/tk/wizarddialog.py
+++ b/pysollib/tk/wizarddialog.py
@@ -21,13 +21,13 @@
 #
 # ---------------------------------------------------------------------------##
 
+import tkinter
+
 from pysollib.mfxutil import KwStruct
 from pysollib.mygettext import _
 from pysollib.wizardpresets import presets
 from pysollib.wizardutil import WizardWidgets
 
-from six.moves import tkinter
-
 from .tabpage import TabPageSet
 from .tkwidget import MfxDialog
 
diff --git a/pysollib/ui/tktile/Canvas2.py b/pysollib/ui/tktile/Canvas2.py
index ba656755b..9c6cca96b 100644
--- a/pysollib/ui/tktile/Canvas2.py
+++ b/pysollib/ui/tktile/Canvas2.py
@@ -1,9 +1,9 @@
 # This module exports classes for the various canvas item types
 
 # NOTE: This module was an experiment and is now obsolete.
-# It's best to use the Tkinter.Canvas class directly.
+# It's best to use the tkinter.Canvas class directly.
 
-from six.moves.tkinter import Canvas, _cnfmerge, _flatten  # noqa: F401
+from tkinter import Canvas, _cnfmerge, _flatten  # noqa: F401
 
 
 class CanvasItem:
diff --git a/pysollib/ui/tktile/colorsdialog.py b/pysollib/ui/tktile/colorsdialog.py
index 5e845d095..0a7ebf3c6 100644
--- a/pysollib/ui/tktile/colorsdialog.py
+++ b/pysollib/ui/tktile/colorsdialog.py
@@ -21,10 +21,11 @@
 #
 # ---------------------------------------------------------------------------
 
+import tkinter
+
 from pysollib.mfxutil import KwStruct
 from pysollib.mygettext import _
 
-from six.moves import tkinter
 from six.moves.tkinter_colorchooser import askcolor
 
 
diff --git a/pysollib/ui/tktile/edittextdialog.py b/pysollib/ui/tktile/edittextdialog.py
index 860a42f45..a336aa33d 100644
--- a/pysollib/ui/tktile/edittextdialog.py
+++ b/pysollib/ui/tktile/edittextdialog.py
@@ -1,8 +1,8 @@
+import tkinter
+
 from pysollib.mfxutil import KwStruct
 from pysollib.mygettext import _
 
-from six.moves import tkinter
-
 
 class BaseEditTextDialog:
     def __init__(self, parent, title, text, **kw):
diff --git a/pysollib/ui/tktile/findcarddialog.py b/pysollib/ui/tktile/findcarddialog.py
index 51d81508b..9bbfcd817 100644
--- a/pysollib/ui/tktile/findcarddialog.py
+++ b/pysollib/ui/tktile/findcarddialog.py
@@ -22,6 +22,7 @@
 # ---------------------------------------------------------------------------
 
 import os
+import tkinter
 
 from pysollib.mygettext import _
 from pysollib.resource import CSI
@@ -31,8 +32,6 @@
 from pysollib.ui.tktile.tkutil import after, after_cancel
 from pysollib.ui.tktile.tkutil import bind, makeImage, unbind_destroy
 
-from six.moves import tkinter
-
 
 LARGE_EMBLEMS_SIZE = (38, 34)
 SMALL_EMBLEMS_SIZE = (31, 21)
diff --git a/pysollib/ui/tktile/fullpicturedialog.py b/pysollib/ui/tktile/fullpicturedialog.py
index c413cbfa3..251a54c13 100644
--- a/pysollib/ui/tktile/fullpicturedialog.py
+++ b/pysollib/ui/tktile/fullpicturedialog.py
@@ -21,14 +21,14 @@
 #
 # ---------------------------------------------------------------------------
 
+import tkinter
+
 from pysollib.mygettext import _
 from pysollib.settings import TITLE
 from pysollib.ui.tktile.tkcanvas import MfxCanvas, MfxCanvasGroup
 from pysollib.ui.tktile.tkcanvas import MfxCanvasImage
 from pysollib.ui.tktile.tkutil import bind, unbind_destroy
 
-from six.moves import tkinter
-
 
 class FullPictureDialog(tkinter.Toplevel):
     CARD_IMAGES = {}  # key: (type, rank, suit)
diff --git a/pysollib/ui/tktile/menubar.py b/pysollib/ui/tktile/menubar.py
index 36fed8573..d10f2a1cf 100644
--- a/pysollib/ui/tktile/menubar.py
+++ b/pysollib/ui/tktile/menubar.py
@@ -3,6 +3,7 @@
 import platform
 import re
 import sys
+import tkinter
 
 from pysollib.gamedb import GI
 from pysollib.hint import PySolHintLayoutImportError
@@ -17,7 +18,6 @@
 from pysollib.ui.tktile.tkconst import STATUSBAR_ITEMS, TOOLBAR_BUTTONS
 from pysollib.ui.tktile.tkutil import after_idle, bind
 
-from six.moves import tkinter
 from six.moves import tkinter_tkfiledialog
 
 
diff --git a/pysollib/ui/tktile/solverdialog.py b/pysollib/ui/tktile/solverdialog.py
index 7d335665e..aa3afc0a0 100644
--- a/pysollib/ui/tktile/solverdialog.py
+++ b/pysollib/ui/tktile/solverdialog.py
@@ -1,9 +1,9 @@
+import tkinter
+
 from pysollib.mygettext import _
 from pysollib.settings import TITLE
 from pysollib.ui.tktile.tkconst import EVENT_HANDLED
 
-from six.moves import tkinter
-
 
 class BaseSolverDialog:
     def _ToggleShowProgressButton(self, *args):
diff --git a/pysollib/ui/tktile/tkcanvas.py b/pysollib/ui/tktile/tkcanvas.py
index ec99e8f76..0ddd1d7c4 100644
--- a/pysollib/ui/tktile/tkcanvas.py
+++ b/pysollib/ui/tktile/tkcanvas.py
@@ -21,13 +21,13 @@
 #
 # ---------------------------------------------------------------------------
 
+import tkinter
+
 from pysollib.mfxutil import Image, ImageTk
 from pysollib.ui.tktile.Canvas2 import CanvasText, Group, Line, Rectangle
 from pysollib.ui.tktile.Canvas2 import ImageItem as ImageItem2
 from pysollib.ui.tktile.tkutil import loadImage, unbind_destroy
 
-from six.moves import tkinter
-
 
 # ************************************************************************
 # * canvas items
diff --git a/pysollib/ui/tktile/tkconst.py b/pysollib/ui/tktile/tkconst.py
index d9c9de559..e9af3faf8 100644
--- a/pysollib/ui/tktile/tkconst.py
+++ b/pysollib/ui/tktile/tkconst.py
@@ -21,9 +21,9 @@
 #
 # ---------------------------------------------------------------------------##
 
-from pysollib.mygettext import n_
+import tkinter
 
-from six.moves import tkinter
+from pysollib.mygettext import n_
 
 # ************************************************************************
 # * constants
diff --git a/pysollib/ui/tktile/tkhtml.py b/pysollib/ui/tktile/tkhtml.py
index ec24c9040..cfe58b5e9 100644
--- a/pysollib/ui/tktile/tkhtml.py
+++ b/pysollib/ui/tktile/tkhtml.py
@@ -23,6 +23,7 @@
 
 import os
 import sys
+import tkinter
 
 import pysollib.formatter
 import pysollib.htmllib2 as htmllib
@@ -31,8 +32,6 @@
 from pysollib.settings import TITLE
 from pysollib.ui.tktile.tkutil import bind, unbind_destroy
 
-from six.moves import tkinter
-
 REMOTE_PROTOCOLS = ("ftp:", "gopher:", "http:", "https:", "mailto:", "news:",
                     "telnet:")
 
diff --git a/pysollib/ui/tktile/tkutil.py b/pysollib/ui/tktile/tkutil.py
index 14ba0321f..c93cdb432 100644
--- a/pysollib/ui/tktile/tkutil.py
+++ b/pysollib/ui/tktile/tkutil.py
@@ -23,12 +23,12 @@
 
 import os
 import re
+import tkinter
 
 from pysollib.mfxutil import Image, ImageDraw, ImageOps, ImageTk, \
     get_default_resampling
 from pysollib.settings import TITLE, WIN_SYSTEM
 
-from six.moves import tkinter
 from six.moves import tkinter_font
 
 
diff --git a/pysollib/ui/tktile/tkwrap.py b/pysollib/ui/tktile/tkwrap.py
index 3c438ea84..d85b1e2ec 100644
--- a/pysollib/ui/tktile/tkwrap.py
+++ b/pysollib/ui/tktile/tkwrap.py
@@ -21,9 +21,10 @@
 #
 # ---------------------------------------------------------------------------
 
+import tkinter
+
 from pysollib.ui.tktile.tkconst import EVENT_PROPAGATE
 
-from six.moves import tkinter
 TclError = tkinter.TclError
 
 
diff --git a/scripts/cardset_viewer.py b/scripts/cardset_viewer.py
index ae5fd5965..a669cfa59 100755
--- a/scripts/cardset_viewer.py
+++ b/scripts/cardset_viewer.py
@@ -8,11 +8,11 @@
 # Arrow up/down flip through the sets
 
 import os
+import tkinter
 from glob import glob
 
 from PIL import Image, ImageTk
 
-from six.moves import tkinter
 from six.moves import tkinter_tkfiledialog as filedialog  # messagebox